Portable electric lamp.



W. J. MONAGHAN.

PORTABLE ELECTRIC LAMP. APPLICATION FILED APB.6, 1914.

Patented Aug. 11, 1914.

UNITED STATES PATENT OFFICE.

WILLIAM J. MONAGHAN, 0F WATERBURY, CONNECTICUT, ASSIGNOR. '10 WATEBBUBY MFG. C0,, OF WATERBURY, C0NHEC'JIIC'WI, A CORPORATION.

ronrmann ntncraro LAMP.

Specification of Letters Patent.

Patented Aug. 11, 1914.

tute part of this application, and represent,

Figure 1 a side view of a portable electric amp constructed in accordance with my invention. Fig. 2- a vertlcal sectional view of the same on an enlarged scale.

This invention relates to an improvement in portable electric lamps, the object being to produce a lamp of such small compass that it may be readily carried in the pocket like a pencil; and the invention consists in certain details of construction as will be hereinafter described and pointed out in the claims.

In carrying out my invention, I form a casin 2 from a piece oftubing of suitable len the outer end 3.0f whlch is turned inward and threaded to receive the usual electric lamp bulb 4 which is provided with the usual contact 5. Within the inner end the contacts apart. The inner endof the tubular casing is providedwith threads to receive a cap 9 which has a perforation 10 for the passage throughit of a'push button 11. This push button. as 'shown' is prefer provided with the usual.

ably struck up from sheet metal and comprises a cup-shaped finger-piece 12 and a shell 13 set over the open end of the fingerpiece and forming a metallic bearing for the end of the battery which is forced upon it by the spring 6. An inward push on the button 11 compresses the spring 6 and allows the contacts 5 and 8 to meet so as to close the circuit through the lamp. A ver simple form of portable electric lam s is t us provided and contact is made wit out the use of buttons extending through the side walls of the casing which require the casing to be enough larger than the battery to permit the push buttons to operate.

I claim 1. A portable electric lamp comprisin a tubular casing adapted to contain an cictric lamp at one end, a cap attached to the opposite end, said cap formed with an opening, and a metal push-button within the casin in which it is longitudinally movable, said utton havin a'finger-piece projecting outward through t e o ening in said cap.

' 2. A portable electric lamp comprising a v casing one end turned in and interna threaded, an electric lamp engaging therewith, an electric battery in said casing, a spring between the battery and casing and tending to separate the battery from the lamp, the opposite end of the casing closed by a cap having an opening, and a push button located within the casing and projecting outward through said cap and furnishing a su port for the battery. v

n testimony whereof, I have signed this specificationin the presence of two subscribingwitnesses.

WILLIAM J. MONAGHAN. Witnesses: J S. Nmom, A. C. Rm. 

